Help! How can I solder resistors on a PCB??

Question

I need to solder some resistors in both series & parallel on a PCB. Plz help.

Answer 1

Drill holes thru the PCB, and then wire the resistors in the configuration you need on the other side.

Answer 2

Soldering resistors on the PCB is a complex and professional task , it must be done from an experienced person. The basic steps for soldering surface mount chips (a 1206 resistor): flux the board, tack the component and then solder the other side. Important Point: The resistive element is the colored side of a resistor, so it should face up to help dissipate heat. 1206 refers to the dimensions of its shape: 120 thousandths of an inch by 60 thousandths. 603's are 60x30 thousandths and so on.
1. Add flux to the board: For larger components, like this 1206 resistor, you might not need flux if you melt flux cored solder directly on the pad. For smaller chips, however, oftentimes tinning the pad with wire solder will result in too much solder--a light touch with a tinned tip is all that's required. Flux becomes active and quickly gets used up on the hot iron tip.
2. Using tweezers, lightly press down on the resistor and touch the junction between the chip and pad with a clean iron tip.
3. Rotate the board and add a small amount of solder to the other side.To do this, hold the tip so that it touches both the component and pad, and then lightly touch it with solder.
4. If necessary, add more solder to the first side.
5. The most important thing is that the solder looks like it adhered or clung to the metal. There should be a smooth fillet or ramp connecting the pad and resistor.
At last I must say that we at BEST Inc solder.net provides various courses of solder training and IPC certification.